TinCan API issues

The TinCan API integration was tested by Alan Berg and he reported the following problems:

```
I have set up a reference implementation (https://github.com/adlnet/ADL_LRS) of an LRS over SSL at https://draco.ic.uva.nl
The LRS supports OAUTH and basic auth. 

You can self register at: https://draco.ic.uva.nl/xapi/register/

I added details to the QA server:

Under the Learning Record Store Configuration

The LRS application ID OAE_STREAM_1
The LRS application secret: Added the server secret. Would prefer the input box as a password box and not text.
API REST POINT: https://draco.ic.uva.nl/xapi/statements

(note:The REST point expects a header with version 1 of X-Experience-API-Version)

Saved configuration, but did not restart the tenant.

I created a user (alanberg) and uploaded a couple of files etc. 

On the OAE server the recent activity showed only the first event. No events were seen by draco or attempts in the webserver log file.

Questions:

1) Has the recent activity in OAE stopped because of failing to make a connection to the LRS
2) What is the meaning of:
     The LRS application ID
     The LRS application secret
     The LRS application secret - Is this the server secret or one generated for OAUTH
3) What is the authentication method
4) Should I restart the tenant
```

It would be good to investigate what the issue is. Let me know if there is anything else you need from Alan.